Comparison

Morse Code Translator & games vs 海技士4級対策 500問

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Morse Code Translator & games

Learn Morse code through interactive lessons and practice exercises. Translate text to Morse and vice versa, send SOS signals, and decode messages using sound or light. Offers both free and premium features for learners of all levels.

Highlights
  • Guided Morse code learning course
  • Text and code translator
  • SOS signal generator
  • Straight key simulator
  • Light and sound decoders
  • Reference chart and Q codes
Features
Read full description

Learn Morse code the easy way, then use it: a guided course, a translator, an SOS signal, a straight key and a complete reference, all in one app. LEARN MORSE CODE STEP BY STEP • A guided course: letters first, then digits, punctuation, prosigns and real words • Short lessons with varied exercises: listen and choose, read the code, build it with dots and dashes, match pairs, copy by ear • Score 90% to unlock the next lesson, earn stars and replay any lesson you like • Real Morse timing (PARIS standard) with Farnsworth spacing: you learn the rhythm, not a chart • Koch or alphabetical order, Latin and Cyrillic alphabets PRACTICE A LITTLE EVERY DAY • Smart review of the characters you miss most • Speed challenge with your personal record in words per minute (WPM) • Daily streak and an optional practice reminder USE MORSE CODE FOR REAL • Translator: text to Morse code and Morse code to text, instantly • Play any message with sound, flashlight, screen flash or vibration • SOS signal in one tap, with light, screen and sound • Straight key: tap your own Morse code and see it decoded live • Light decoder: point the camera at a blinking light and read the Morse code live • Sound decoder: the microphone listens to beeps and decodes them live • The camera and microphone are analyzed on your phone only: nothing is recorded or sent • Tone generator with audio export to share a message • Reference: full Morse alphabet chart, common phrases, Q codes and ham radio abbreviations MADE FOR LEARNERS For students, curious minds, scouts, escape game fans and future ham radio operators learning CW. Speed, tone, volume and spacing can all be adjusted. FREE AND PREMIUM The whole alphabet course, the translator with sound, the SOS signal, the straight key and the reference are free. Premium unlocks digits, punctuation and words, every practice mode, light and vibration output, audio export and advanced settings. Yearly subscription with a free trial, or a one-time lifetime purchase. The light and sound decoders can be tried 3 times each for free; Premium unlocks them without limit. No account needed: your progress stays on your phone. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://appkickstarter.com/apps/morse-code/privacy-policy.html

About

海技士4級対策 500問

This app provides a comprehensive practice exam for the Class 4 Maritime Officer certification. It features 500 questions across five key subject areas, with detailed explanations for each answer. Track your progress and focus on weak areas with chapter-specific practice and offline functionality.

Highlights
  • 5 chapters x 500 practice questions
  • Detailed explanations for all questions
  • Chapter-specific practice
  • Progress tracking and statistics
  • Dark/light theme support
  • Offline operation
Features
Read full description

海技士4級の対策アプリです。 ■ 5章×500問の本格問題集 第1章 海事法規 第2章 航海・航海計器 第3章 運用・操船 第4章 海洋気象・海象 第5章 救命・消火・通信 ■ 主な機能 ・章別練習で苦手分野を集中対策 ・全問詳しい解説付き ・進捗管理と統計表示 ・ダーク・ライトテーマ対応 ・完全オフライン動作 本アプリは「海技士4級」資格試験の予想問題集です。

Screenshots

Morse Code Translator & games4 screens
海技士4級対策 500問4 screens

Verdict

The call

The clearest difference is price: Morse Code Translator & games at Free against 海技士4級対策 500問's $4.99. Morse Code Translator & games also leads on review sentiment (36% vs 0%) and update cadence (every 2 weeks vs every 5 weeks). 海技士4級対策 500問's advantage is in-app purchases (none vs 9) and iOS requirement (15.1 vs 18.2). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Morse Code Translator & games is free to download; 海技士4級対策 500問 costs $4.99 up front. Morse Code Translator & games sells 9 in-app purchases, starting at $1.99 per 7 days. 海技士4級対策 500問 asks for nothing beyond the download.

UpkeepUpdate frequency

Morse Code Translator & games ships an update every 2 weeks, 海技士4級対策 500問 every 5 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Morse Code Translator & games versus 海技士4級対策 500問: the parameters behind the verdict, then further details
ParameterMorse Code Translator & games海技士4級対策 500問
PriceFree — better$4.99
Rating4.4 (114 ratings) — better—
Positive reviews35.9% of reviews — better0.0% of reviews
Number of ratings114 — better—
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.215.1 — better
Further details — not scored
Size62 MB34 MB
Age rating4+4+
DeveloperLouis Duboscqsatoshi yoshida

Customer experience

Morse Code Translator & games

All ratings114 ratings
Positive83.3%
Neutral7.9%
Negative8.8%
Written reviews39 reviews
Positive35.9%
Neutral17.9%
Negative46.2%

海技士4級対策 500問

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Morse Code Translator & games

Reported bugs

20 issues
  • Bug preventing level progression
  • Repeated 'Й' letter
  • Error message blocking level 73
  • App not opening
  • Subscription not unlocking all levels
Show 15 more
  • Stuck at 98% on listening tests
  • Fireworks screen blocking progress
  • Buttons at the bottom not accessible
  • No space for buttons at level 48
  • Screen scrunched on left in landscape
  • Nothing shows in portrait mode
  • Error 73 not found
  • App not usable past level 53
  • Large space at top of listen exercise cuts off buttons
  • Bug at level 48: cannot replay, new letter not added
  • Keep learning button not working after closing app
  • Button 'continue learning' does nothing after level 26
  • Cannot proceed to next level at level 24
  • Errors in the app, cannot move forward or backward
  • App resets progress to level 17 at letter H

Requested features

4 requests
  • Add Russian language support
  • Add ability to continue practicing after completing levels
  • Offer a paid version instead of ads
  • Add dark mode option

海技士4級対策 500問

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Morse Code Translator & games

Subscriptions6
  • Weekly access$1.997 Days
  • Monthly access$1.991 Month
  • Monthly Access$2.991 Month
Show 3 more
  • Premium Yearly$9.991 Year
  • Pro Yearly7 Days trial$19.991 Year
  • Annual access$19.991 Year
One-time3
  • Lifetime acess$14.99
  • Lifetime access$24.99
  • Pro Lifetime$39.99
None

海技士4級対策 500問

No in-app purchases

Questions

Is Morse Code Translator & games free?
Morse Code Translator & games is free to download, with in-app purchases available.
Is 海技士4級対策 500問 free?
海技士4級対策 500問 costs $4.99, with no in-app purchases.
Do Morse Code Translator & games or 海技士4級対策 500問 have ads?
Neither Morse Code Translator & games nor 海技士4級対策 500問 shows ads.
Which is updated more often, Morse Code Translator & games or 海技士4級対策 500問?
Morse Code Translator & games ships an update every 2 weeks, and 海技士4級対策 500問 every 5 weeks. Most recently, Morse Code Translator & games was updated on November 7, 2026 and 海技士4級対策 500問 on October 31, 2026.

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